I constructed my report for IST. Do I own this content?

Yes, I still own the content. According to the terms and conditions of using this wiki, Tangient LLC does not claim the ownership for the contents posted, but by using this service, in order provide and maintain the service, "you grant Tangient LLC world-wide, perpetual, irrevocable, royalty free, non-exclusive, fully sub-licensable license(s) to use, distribute, reproduce, modify, adapt, publish, display, and translate, such Content (in whole or in part) solely in connection with the provision of the Service."

Key Words

Perpetual - ageless: continuing forever or indefinitely
wordnetweb.princeton.edu/perl/webwn

Irrevocable - incapable of being retracted or revoked